Modified Osteotomies for Wing and Mini-Wing Genioplasty

Patients with chin deficiency secondary to dentofacial deformity often present with aesthetic and functional complaints. Treatment of such deficiencies with conventional genioplasty may be limited when broader modification of the mandibular basilar contour is required. This retrospective case series reports the clinical and radiographic outcomes of 9 patients treated with wing (n = 8) or mini-wing (n = 1) genioplasty for anteroposterior and/or vertical chin deficiency, mandibular asymmetry, syndromic deformities, post-traumatic sequelae, or airway-related complaints. Wing osteotomy was indicated for the correction of the mandibular body and angle, whereas mini-wing osteotomy was reserved for deformities confined to the chin. Procedures were performed in combination with orthognathic surgery when indicated (n = 6). All patients demonstrated improved chin projection, mandibular contour, and lower facial harmony, with the additional benefits of transverse widening of the mandibular body, enhanced cervicomandibular angle definition, and improved symmetry. In one patient with obstructive sleep apnea, postoperative imaging showed enlargement of the pharyngeal airway space. Stable outcomes were maintained over the follow-up period (mean: 4.3 years; range: 1-9 years). Wing and mini-wing osteotomies represent reliable extensions of conventional genioplasty, allowing comprehensive modification of the mandibular basilar contour.